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C2953M-A (5/09) 33
DAY NIGHT
Day Night controls the position of the IR cut filter, which determines the color or black-white setting of the camera. The Day Night settings
change depending on the Exposure settings. If the camera is set to Auto Exposure, the Day Night Mode can be set to Auto or Manual and all of
the respective settings are available. If the camera is set to Manual Exposure, the only available Day Night setting is Position (refer to Manual
Day Night).
Auto Day Night
Auto day night automatically controls the IR cut filter depending on the Transition Level and Transition Detect Time settings.
Transition Level: Determines when the camera changes from day mode (color) to night mode (black-white). Settings include Lighter, Default,
and Darker. Set the transition level to Lighter if you want the camera to change modes at a high lux setting. Use Default for normal day/night
operation and use Darker to change modes at a low lux setting (refer to Table A):
Transition Detect Time (sec): Controls the length of time the camera is exposed to a light level before it changes to color or black-white mode.
This setting is useful for dark scenes where a bright light is momentarily introduced in the scene. For example, when a car with its headlights
turned on passes the camera scene.
Manual Day Night
Manual day night sets the IR cut filter to a fixed position depending on the Position setting.
Position: Sets the camera's IR filter to the Day (color) or Night (black-white) position.
NOTE: Position is the only available Day Night setting if the camera exposure is set to Manual.
Table A. Lux Transition Points for Incandescent Lighting
Transition Level
Setting
Day to Night
Transition Point
Night to Day
Transition Point
Darker 1.8 lux 5.7 lux
Default 2.8 lux 5.7 lux
Lighter 4.5 lux 5.7 lux